Complete the equation describing how x and y are related.
х
0
1
2 | 3
4
у
-1
3
7
11
15
y = 4x + [?]
Enter the answer that belongs in [?].

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

What is the sum of the first 8 terms of the geometric series